Home / 198,208.88-273,438.96-117,639.80

Finding the Fourth Proportional to 198,208.88, 273,438.96 and 117,639.80

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Solution

The fourth proportional to 198,208.88, 273,438.96 and 117,639.80 is: 162,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,208.88 : 273,438.96 = 117,639.80 : x
  2. Step 2: Convert to fraction form
    198,208.88/273,438.96 = 117,639.80/x
  3. Step 3: Cross multiply
    198,208.88x = 273,438.96 × 117,639.80
  4. Step 4: Simplify right side
    198,208.88x = 32,167,304,566.61
  5. Step 5: Solve for x
    x = 32,167,304,566.61/198,208.88
  6. Step 6: Final answer
    x = 162,289.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.